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Tag: localhost

How to Configure Server API to Receive a Request Body Using Fetch and Express JS?

I’m trying to send a JSON file from the client to the server, but when I try to do so I get the error: “No ‘Access-Control-Allow-Origin’ header is present on the requested resource”. I also get the errors “POST http://localhost:3000/ net::ERR_FAILED” and “Uncaught (in promise) TypeError: Failed to fetch at index.js:6:1”, but I’m not sure if they’re relevant or symptomatic